Refrigeration equipment

Abstract

The utility model provides refrigeration equipment which comprises a refrigerating chamber and a freezing chamber which are arranged side by side in a left-right mode. The refrigeration equipment is further provided with a cooling chamber arranged on the upper side of the back portion of the freezing chamber, an evaporator arranged in the cooling chamber, a fan located on the upper side of the evaporator, and an air supply duct enabling the refrigerating chamber and the cooling chamber to be communicated so that cold air cooled in the cooling chamber can enter the refrigerating chamber. The refrigerating chamber is communicated with the cooling chamber through the refrigerating air return pipe so that air in the refrigerating chamber can flow into the cooling chamber when the fan operates normally, and after the fan stops operating, cooled cold air in the cooling chamber sinks into a function storage area on the lower portion of the refrigerating chamber from the refrigerating air return pipe. The refrigeration equipment is simple in structure, cold can be fully utilized for functional storage, the cold can be reasonably utilized, and the use function of the refrigeration equipment can be expanded.

Description

Technical Field

[0001] The utility model relates to a refrigeration device. Background Art

[0002] Existing refrigeration equipment usually adopts air cooling to improve refrigeration efficiency. Existing air-cooled refrigeration equipment generally includes at least a cold storage room and a freezer room. The cold air cooled by the evaporator flows to the cold storage room and the freezer room through the air duct respectively. The cold storage room and the freezer room are respectively provided with air outlets for cold air to flow in. As the storage needs of users gradually increase, the capacity of refrigeration equipment is also getting larger and larger. Usually more compartments are set up to meet the needs. Usually the cold storage room is located above the freezer room, while the compressor compartment and the refrigeration room are usually located at the bottom of the refrigeration equipment. In this way, the freezing air duct will occupy the back space of the entire freezer room, and the return air duct of the cold storage room extends over the entire height space of the refrigeration equipment. The entire return air duct is relatively long, and the volume of the cold storage and freezer rooms will inevitably be limited. At the same time, the use needs of users are becoming more and more diverse. For example, the functional storage area is favored by many users. Meeting this demand usually requires the installation of additional pipelines to achieve.

[0003] In view of this, it is necessary to improve the existing refrigeration equipment to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a refrigeration device which has a simple structure, can effectively utilize cold capacity and has more functions.

[0005] To achieve the above-mentioned purpose of the utility model, the utility model provides a refrigeration device, which includes a refrigerating chamber and a freezing chamber arranged side by side on the left and right, the refrigerating device also has a cooling chamber arranged on the upper side of the back of the freezing chamber, an evaporator arranged in the cooling chamber, a fan located on the upper side of the evaporator, an air supply duct connecting the refrigerating chamber with the cooling chamber so that the cold air cooled in the cooling chamber enters the refrigerating chamber, and a refrigerating chamber return air duct connecting the refrigerating chamber with the cooling chamber so that when the fan is operating normally, the air in the refrigerating chamber flows into the refrigerating chamber return air duct in the cooling chamber; when the fan stops operating, the cold air cooled in the cooling chamber sinks from the refrigerating chamber return air duct into the functional storage area at the lower part of the refrigerating chamber.

[0006] As a further improvement of the utility model, the upper end of the refrigerated return air duct is a return air outlet, and the lower end is a return air inlet. The return air outlet is connected to the bottom of the cooling chamber and is located on one side of the cooling chamber in the left-right direction.

[0007] As a further improvement of the present invention, the refrigerated return air duct includes a main pipe extending in the height direction and a connecting pipe connected to the top of the main pipe, and the connecting pipe is arranged at an angle to the main pipe.

[0008] As a further improvement of the present invention, the connecting pipeline is arranged at an angle, and the end of the connecting pipeline connected to the main pipeline is higher than the end of the connecting pipeline connected to the cooling chamber.

[0009] As a further improvement of the present invention, the refrigerated return air duct also has a branch pipe extending from the main pipe, and the connecting pipe and the branch pipe are arranged on the left and right sides of the main pipe. When the fan operates normally, the air in the refrigerated chamber flows into the cooling chamber through the branch pipe and the main pipe; when the fan stops operating, the cold air cooled in the cooling chamber flows into the lower part of the refrigerated chamber through the branch pipe and the main pipe.

[0010] As a further improvement of the present invention, the auxiliary return air inlet of the branch pipeline and the return air inlet of the main pipeline are arranged at intervals in the height direction.

[0011] As a further improvement of the present invention, the refrigeration equipment also has a mixing chamber connecting the cooling chamber and the refrigerating chamber, and an air duct arranged at the rear of the storage space of the refrigerating chamber, one end of the air duct is connected to the mixing chamber, and the other end oppositely arranged is connected to the storage space of the refrigerating chamber.

[0012] As a further improvement of the utility model, the refrigerating chamber is provided with a drawer located at the lower part thereof and a supporting structure located at the upper part thereof for supporting articles, and the return air inlet of the refrigerating return air duct is arranged close to the drawer located at the lower side.

[0013] As a further improvement of the present invention, the refrigeration equipment also has an air mixing structure located at the back of the refrigerating chamber. When the fan operates normally, the air cooled in the cooling chamber and the air in the refrigerating chamber flow into the mixing chamber formed by the air mixing structure, mix, and then flow out into the refrigerating chamber.

[0014] As a further improvement of the present invention, the air mixing structure is arranged at the upper rear part of the refrigerating chamber, and is provided with an air outlet located on its front side for discharging air forward, an air inlet duct for introducing the air in the refrigerating chamber into the mixing chamber, and a connecting port located on its lower side and connected to the air guide duct.

[0015] The beneficial effects of the utility model are as follows: the refrigeration equipment of the utility model arranges the cooling chamber on the upper side of the back of the freezing chamber, and returns air through the refrigerated return air duct when the fan is operating normally. After the fan stops operating, the cold air in the cooling chamber sinks through the refrigerated return air duct into the functional storage area located at the bottom of the refrigerated chamber, thereby making full use of the existing pipelines for functional storage, so that the cold energy is reasonably utilized and the use function of the refrigeration equipment can be expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a three-dimensional schematic diagram of the refrigeration equipment of the utility model.

[0017] Figure 2 yes Figure 1 The schematic diagram of the refrigeration device shown is a schematic diagram of the refrigeration device after the drawer located at the lower side is removed.

[0018] Figure 3 yes Figure 2 The schematic diagram of the first embodiment of the refrigeration device with the cabinet removed is shown.

[0019] Figure 4 yes Figure 3 Front view of the refrigeration unit shown.

[0020] Figure 5 yes Figure 3 Another view of the refrigeration device shown.

[0021] Figure 6 yes Figure 4 Exploded view of a portion of the refrigeration unit shown.

[0022] Figure 7 yes Figure 6 A front view of an embodiment of a cold storage return air duct of a refrigeration device is shown.

[0023] Figure 8 yes Figure 6 A three-dimensional view of another embodiment of a refrigeration return air duct of a refrigeration device is shown.

[0024] Fig. 9 yes Figure 6 A three-dimensional view of the air mixing structure of the refrigeration equipment shown.

[0025] Fig.10 yes Figure 3 A partial cross-sectional view of the refrigeration equipment shown.

[0026] Fig.11 yes Figure 3 Another partial cross-sectional view of the refrigeration device shown.

[0027] Fig.12 yes Figure 3 A cross-sectional view of an air mixing structure of the refrigeration equipment shown.

[0028] Fig.13 yes Fig. 9 A side view of the air mixing structure is shown.

[0029] Fig.14 yes Fig. 9 A cross-sectional view of the air mixing structure shown.

[0030] Fig.15 yes Figure 1 A schematic cross-sectional view of the refrigeration equipment shown.

[0031] Fig.16 It is a schematic diagram of the second embodiment of the refrigeration device of the utility model after the box body is removed.

[0032] Fig.17 yes Fig.16 Another view of the refrigeration device shown.

[0033] Fig.18 yes Fig.16 A cross-sectional view of the refrigeration equipment shown.

[0034] In the figure:

[0035] 100. Refrigeration equipment;

[0036] 10. Storage room; 11. Refrigerator; 112. Functional storage area; 12. Freezer; 13. Middle beam; 14. Drawer; 15. Support structure;

[0037] 20. Cooling chamber; 21. Evaporator; 22. Fan;

[0038] 30. air mixing structure; 301. mixing chamber; 3011. first mixing area; 3012. second mixing area; 3013. connecting channel; 3014. first vertical channel; 3015. second vertical channel; 3016. narrowing channel; 302. inclined surface; 31. front wall; 312. air outlet; 3121. first air outlet; 3122. second air outlet; 3123. third air outlet; 32. rear wall; 321. recessed portion; 34. partition wall; 341. first straight wall; 3412. step portion; 342. connecting wall; 3421. end surface; 343. second straight wall; 35. partition; 36. drainage groove;

[0039] 4. air supply duct; 41. first air supply section; 411. straight section; 412. inclined section; 42. second air supply section;

[0040] 5. Air inlet duct; 51. First air inlet section; 52. Second air inlet section; 53. Third air inlet section; 54. Fourth air inlet section;

[0041] 6. Cover body;

[0042] 71. Refrigerated return air duct; 7101. Return air outlet; 7102. Return air inlet; 7103. Auxiliary return air inlet; 711. Main line; 712. Connecting line; 713. Branch line; 72. Refrigerated supply air duct; 73. Refrigerated return air duct; 74. Drain pipe; 741. First drainage section; 742. Second drainage section; 75. Air guide duct. DETAILED DESCRIPTION

[0043] The present invention will be described in detail below in conjunction with the embodiments shown in the accompanying drawings. However, the embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on the embodiments are all within the protection scope of the present invention.

[0044] The terms used herein, such as "upper", "lower", "left", "right", "front", "back", etc., which indicate relative positions in space, are used for the purpose of convenience to describe the relationship between one feature and another feature as shown in the drawings. It is understood that, depending on the placement of the product, the terms of relative positions in space may be intended to include different orientations in addition to the orientation shown in the drawings, and should not be construed as limitations on the claims. In addition, the descriptor "horizontal" used herein is not completely equivalent to being perpendicular to the direction of gravity, and a certain angle of inclination is allowed.

[0045] Please refer to Figure 1 to Figure 2 FIG. 1 is a schematic diagram of a refrigeration device 100 of the present invention. Figures 3 to 15 This is the first embodiment of the refrigeration device 100. Figures 16 to 18 is a second embodiment of the refrigeration device 100, wherein Figure 7 is an implementation of the refrigeration return air duct 71 of the refrigeration equipment 100, Figure 8 This is another implementation of the refrigeration return air duct 71 of the refrigeration equipment.

[0046] Please refer to Figures 1 to 6 As shown, the refrigeration device 100 includes a storage compartment 10 and a cooling compartment 20. In the embodiment shown in the present utility model, the storage compartment 10 has a drawer 14 located at the lower part thereof and a support structure 15 located at the upper part thereof for supporting articles.

[0047] The refrigeration device 100 includes a refrigerating chamber 11 and a freezing chamber 12 arranged side by side, and the refrigerating chamber 11 and the freezing chamber 12 are separated by a center beam 13 of the refrigerating device 100. The refrigerating device 100 also includes the cooling chamber 20 arranged on the upper back side of the freezing chamber 12, an evaporator 21 arranged in the cooling chamber 20, a fan 22 located on the upper side of the evaporator 21, an air supply duct 4 connecting the refrigerating chamber 11 with the cooling chamber 20 so that the cold air cooled in the cooling chamber 20 enters the refrigerating chamber 11, and a cold return air duct 71 connecting the refrigerating chamber 11 with the cooling chamber 20 so that when the fan 22 is operating normally, the cold air cooled in the cooling chamber 20 sinks from the cold return air duct 71 into the functional storage area 112 at the lower part of the refrigerating chamber 11.

[0048] In some embodiments of the utility model, the refrigerated return air duct 71 is arranged in the central beam 13, the upper end of the refrigerated return air duct 71 is a return air outlet 7101, and the lower end is a return air inlet 7102. The return air outlet 7101 is connected to the bottom of the cooling chamber 20 and is located on one side of the cooling chamber 20 in the left-right direction.

[0049] In addition, in some embodiments of the present invention, a plurality of support structures 15 are arranged at different heights in the refrigerating chamber 11 along the up and down directions, and the return air inlet 7102 of the refrigerating return air duct 71 is arranged close to the drawer 14 located at the lower side.

[0050] The refrigerated return air duct 71 includes a main line 711 extending in the height direction and a connecting line 712 connected to the top of the main line 711, and the connecting line 712 is arranged at an angle to the main line 711. The return air outlet 7101 of the refrigerated return air duct 71 is arranged at one end of the connecting line 712 connected to the cooling chamber 20.

[0051] like Figure 4 and Figure 7 As shown, the connecting pipe 712 is arranged at an angle, and the end of the connecting pipe 712 connected to the main pipe 711 is higher than the end connected to the cooling chamber 20, so that the water vapor in the connecting pipe 712 can flow downward into the water receiving tray under the evaporator 21 to avoid flowing into the refrigerating chamber 11.

[0052] The refrigeration return air duct 71 also has a branch pipe 713 extending from the main pipe 711, and the connecting pipe 712 and the branch pipe 713 are respectively arranged on the left and right sides of the main pipe 711. When the fan 22 operates normally, the air in the refrigeration chamber 11 enters the branch pipe 713 and the main pipe 711 through the auxiliary return air inlet 7103 of the branch pipe 713 and the return air inlet 7102 of the main pipe 711, and then flows into the cooling chamber 20. The auxiliary return air inlet 7103 of the branch pipe 713 and the return air inlet 7102 of the main pipe 711 are arranged at intervals in the height direction.

[0053] The refrigeration device 100 also has a drain pipe 74 connected to the cooling chamber 20 to drain the water in the cooling chamber 20, and the refrigeration return air duct 71 is arranged close to the drain pipe 74. The water inlet of the drain pipe 74 is lower than the height of the return air outlet 7101 of the refrigeration return air duct 71 in the height direction.

[0054] In such Figures 3 to 6 In one embodiment shown, the refrigerated return air duct 71 and the drain pipe 74 are independent of each other and arranged side by side, and the drain pipe 74 extends downward beyond the bottom end of the refrigerated return air duct 71 .

[0055] In such Figure 8 and Fig.16 In another embodiment shown, the drain pipe 74 extends into the refrigerated return air duct 71 and includes a first drain section 741 located at the upper side and a second drain section 742 located at the lower side, the first drain section 741 connects the cooling chamber 20 with the refrigerated return air duct 71, and the second drain section 742 extends downward from the bottom end of the refrigerated return air duct 71. The first drain section 741 is connected to one side of the refrigerated return air duct 71 close to the cooling chamber 20 in the left-right direction.

[0056] In some embodiments, the refrigeration equipment 100 also has a mixing chamber 301 connecting the cooling chamber 20 and the refrigerating chamber 11, and an air duct 75 arranged at the rear of the storage space of the refrigerating chamber 11, one end of the air duct 75 is connected to the mixing chamber 301, and the other end oppositely arranged is connected to the storage space of the refrigerating chamber 11.

[0057] Specifically, the refrigeration equipment 100 also has an air mixing structure 30 located at the back of the refrigerating chamber 11. When the fan 22 operates normally, the cooled air in the cooling chamber 20 and the air in the refrigerating chamber 11 flow into the mixing chamber 301 formed by the air mixing structure 30, mix, and then flow out into the refrigerating chamber 11.

[0058] The air mixing structure 30 is arranged at the upper rear part of the refrigerating chamber 11, and is provided with an air outlet 312 located on the front side thereof for discharging air forward, an air inlet duct 5 for introducing the air in the refrigerating chamber 11 into the mixing chamber 301, and a connecting port located on the lower side thereof and connected to the air guide duct 75, and the connecting port is the third air outlet 3123 of the air mixing structure 30.

[0059] The air outlet 312 delivers the mixed cold air in the mixing chamber 301 to the refrigerating chamber 11 , and the cooling chamber 20 and the refrigerating chamber 11 are connected through the mixing chamber 301 .

[0060] In some embodiments, the air mixing structure 30 includes a front wall 31 and a rear wall 32 that are arranged opposite to each other in the front-to-back direction, and the front wall 31 is provided with the air outlet 312 that penetrates the front-to-back direction.

[0061] The air outlet 312 includes a first air outlet 3121 located at an upper side and a second air outlet 3122 located at a lower side. The first air outlet 3121 is disposed adjacent to an upper edge of the air mixing structure 30 .

[0062] like Fig. 9As shown, the first air outlet 3121 and the second air outlet 3122 are both open toward the front, and the width of the first air outlet 3121 in the transverse direction is greater than the width of the second air outlet 3122 in the transverse direction. Fig.14 As shown, the opening size of the second air outlet 3122 in the height direction is smaller than the opening size of the first air outlet 3121 in the height direction. In this embodiment, there is a distance between the second air outlet 3122 and the lower end surface of the air mixing structure 30 .

[0063] When the functional storage area 112 is provided in the refrigerating chamber 11, the air outlet 312 further comprises a third air outlet 3123 located below the second air outlet 3122 in the height direction, and the third air outlet 3123 is open to the bottom. In addition, the refrigerating device 100 further comprises an air guide 75 connected to the third air outlet 3123.

[0064] The air mixing structure 30 further has a partition wall 34 located between the front wall 31 and the rear wall 32 in the front-to-rear direction. The partition wall 34 is located on a side of the air mixing structure 30 close to the cooling chamber 20 and separates the air supply duct 4 from the air inlet duct 5 .

[0065] The air supply duct 4 is located at the rear side of the air inlet duct 5, and the air supply duct 4 includes a first air supply section 41 that connects the air mixing structure 30 with the cooling chamber 20 and a second air supply section 42 formed on the air mixing structure 30. The second air supply section 42 is defined by the partition wall 34 and the rear wall 32, the side end surface of the partition wall 34 close to the cooling chamber 20 is not flush with the side end surface of the rear wall 32 close to the cooling chamber 20, and the side end surface of the partition wall 34 close to the cooling chamber 20 is closer to the cooling chamber 20 than the side end surface of the rear wall 32 close to the cooling chamber 20, that is, the partition wall 34 extends in the left-right direction toward the cooling chamber 20 beyond the side end surface of the rear wall 32, so that the partition wall 34 has a step portion 3412 protruding from the rear wall 32.

[0066] Specifically, the partition wall 34 includes a first straight wall 341, a connecting wall 342, and a second straight wall 343 connected in sequence, and the step portion 3412 is formed at the end of the first straight wall 341 and is located on the side of the first straight wall 341 away from the connecting wall 342. The first straight wall 341 and the second straight wall 343 are staggered in the front-to-back direction, so that the connecting wall 342 is inclined, and the first straight wall 341 is located in front of the second straight wall 343 in the front-to-back direction.

[0067] The second straight wall 343 has an end face 3431 located on one end thereof away from the connecting wall 342. The end face 3431 is inclined, and the rear end of the end face 3431 is away from the connecting wall 342, and the front end is close to the connecting wall 342, thereby effectively preventing the cold air from the cooling chamber 20 from being blown out directly from the air inlet duct 5 without being mixed.

[0068] The first air supply section 41 includes a straight section 411 connected to the second air supply section 42 and an inclined section 412 connecting the straight section 411 to the cooling chamber 20, and an end of the inclined section 412 connected to the cooling chamber 20 is located in front of an end connected to the straight section 411 in the front-to-back direction, so that the straight section 411 is located on the rear side of the refrigerated air supply port of the cooling chamber 20.

[0069] The rear wall 32 is provided with a recessed portion 321 formed by being recessed backward from its front surface on one side close to the cooling chamber 20. The recessed portion 321 is spaced from the end surface of the rear wall 32 close to the cooling chamber 20 in the left-right direction, and the recessed portion 321 is arranged in front and back correspondence with the second straight wall 343 to avoid the problem of the second air supply section 42 becoming narrow at this location due to the rearward bias of the second straight wall 343. The front and rear opening size of the second air supply section 42 is the largest at the portion adjacent to the first air supply section 41, so as to facilitate receiving the cold air sent from the first air supply section 41.

[0070] The air inlet duct 5 and the air supply duct 4 are arranged on the same side of the air mixing structure 30 in the left-right direction. Specifically, the air inlet duct 5 includes a first air inlet section 51 arranged close to the cooling chamber 20, a second air inlet section 52 arranged away from the cooling chamber 20, and a third and fourth air inlet sections 53 and 54 located between the first air inlet section 51 and the second air inlet section 52. The first air inlet section 51 is defined by the partition wall 34 and the cover body 6.

[0071] The diameter of the second air inlet section 52 in the front-to-back direction is smaller than the diameter of the third air inlet section 53 adjacent to it, the opening size of the first air inlet section 51 in the front-to-back direction is smaller than the opening size of the fourth air inlet section 54 adjacent to it, and the opening size of the first air inlet section 51 in the front-to-back direction is also smaller than the opening size of the first air inlet section 51, that is, the first air inlet section 51 is the narrowest part of the entire air inlet duct 5, thereby effectively controlling the flow rate of air entering the mixing chamber 301 from the refrigeration chamber 11.

[0072] like Figures 9 to 12As shown, the air mixing structure 30 also has a partition 35 located inside the mixing chamber 301 and connecting the front wall 31 and the rear wall 32, and the partition 35 divides the mixing chamber 301 into a first mixing area 3011 and a second mixing area 3012, and the first mixing area 3011 and the second mixing area 3012 are connected on the side close to the cooling chamber 20.

[0073] Furthermore, the partition 35 has a protrusion 351 protruding toward the air supply duct 4. In this embodiment, the protrusion 351 is arranged close to the bottom end of the air mixing structure 30 in the height direction, so that the accommodation space of the first mixing area 3011 is larger than the accommodation space of the second mixing area 3012.

[0074] The partition 35 has a first side edge 352 and a second side edge 353 that are oppositely disposed in the height direction. The first and second side edges 352 and 353 are both in a concave arc shape to make the mixing space on both sides of the partition 35 larger.

[0075] like Fig.14 As shown, the first air outlet 3121 is connected to the first mixing area 3011 front to back, and the second air outlet 3122 is connected to the second mixing area 3012 front to back. The first mixing area 3011 has a connecting channel 3013 located on its upper side and connected to the first air outlet 3121, and a first vertical channel 3014 located on its lower side and extending in the vertical direction. The connecting channel 3013 is inclined to form an angle with the first vertical channel 3014, and the opening width of the connecting channel 3013 is larger than the opening height of the first air outlet 3121.

[0076] The second mixing area 3012 includes a second vertical channel 3015 having an upper side and extending vertically, and a narrowed channel 3016 located on the lower side and connected to the second air outlet 3122, the narrowed channel 3016 is connected to the second air outlet 3122 forwardly and to the third air outlet 3123 downwardly, and the opening size of the upper part of the narrowed channel 3016 in the front-to-back direction is larger than the opening size of the lower part in the front-to-back direction.

[0077] Furthermore, if Figures 1 to 4 As shown, in some embodiments, the refrigeration device 100 is a double-door structure, the cooling chamber 20 is arranged on the upper side of the back of the freezing chamber 12, and the mixing chamber 301 is arranged on the upper part of the back of the refrigerating chamber 11.

[0078] The air mixing structure 30 further has a drainage groove 36 at the lower side thereof. The drainage groove 36 penetrates the air mixing structure 30 in the up-down direction so as to discharge condensation formed in the mixing chamber to the outside.

[0079] In addition, the air mixing structure 30 is further provided with an inclined surface 302 located at the lower side thereof and arranged at an angle to the vertical surface, and the outlet end of the drainage groove 36 is opened on the inclined surface 302. In this way, the opening of the outlet end of the drainage groove 36 becomes larger, which is conducive to the discharge of water as soon as possible.

[0080] In some embodiments, the drainage groove 36 is connected to the air inlet duct 5, and the projection of the drainage groove 36 on the horizontal plane falls inside the projection of the air inlet duct 5 on the horizontal plane. The drainage groove 36 is located on the side of the second air outlet 3122 close to the cooling chamber 20 in the left-right direction, and the lower edge of the drainage groove 36 on the inclined surface 302 is located below the second air outlet 3122. In addition, the second air outlet 3122 is located within the extension range of the inclined surface 302 in the height direction.

[0081] In some embodiments, the refrigeration system of the refrigeration device 100 is a single refrigeration system consisting of an evaporator 21 and a fan 22. Through the connection of air ducts, etc., each temperature zone can be refrigerated separately, and the temperature in each room is more uniform and the temperature fluctuation is smaller through the freezing and refrigeration multi-way air supply ducts. In addition, the fan 22 works intermittently. When the fan 22 is operating normally, it blows the cold air in the cooling chamber 20 into the refrigerating chamber 11 and the freezing chamber 12.

[0082] The refrigeration equipment 100 also has a refrigerated air supply duct 72 and a refrigerated air return duct 73 connecting the cooling chamber 20 with the freezing chamber 12. The refrigerated air supply duct 72 sends the cold air cooled in the cooling chamber 20 to the freezing chamber 12, and the refrigerated air return duct 73 returns the air in the freezing chamber 12 to the cooling chamber 20.

[0083] In some embodiments, the refrigeration equipment 100 sets the cooling chamber 20 on the upper side of the back of the freezer chamber 12, and returns air through the refrigeration return air duct 71 when the fan 22 is operating normally. After the fan 22 stops operating, the cold air in the cooling chamber 20 sinks from the refrigeration return air duct 71 into the functional storage area 112 located at the lower part of the refrigeration chamber 11, thereby being able to fully utilize the existing pipelines for functional storage, so that the cold energy is reasonably utilized and the use function of the refrigeration equipment can be expanded.

[0084] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0085] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A refrigeration device, comprising a refrigerating chamber (11) and a freezing chamber (12) arranged side by side, characterized in that: The refrigeration device also comprises a cooling chamber (20) arranged on the upper side of the back of the freezing chamber, an evaporator (21) arranged in the cooling chamber, a fan (22) located on the upper side of the evaporator, an air supply duct (4) connecting the refrigerating chamber with the cooling chamber so that cold air cooled in the cooling chamber can enter the refrigerating chamber, and connecting the refrigerating chamber (11) with the cooling chamber (20) so that when the fan (22) is operating normally, the air in the refrigerating chamber can flow into the refrigerating return air duct (71) in the cooling chamber; when the fan (22) stops operating, the cold air cooled in the cooling chamber sinks from the refrigerating return air duct (71) into the functional storage area (112) at the lower part of the refrigerating chamber (11).

2. The refrigeration device according to claim 1, characterized in that: The upper end of the refrigerated return air duct (71) is a return air outlet (7101), and the lower end is a return air inlet (7102). The return air outlet is connected to the bottom of the cooling chamber (20) and is located on one side of the cooling chamber in the left-right direction.

3. The refrigeration device according to claim 1, characterized in that: The refrigeration return air duct comprises a main pipe (711) extending in the height direction and a connecting pipe (712) connected to the top of the main pipe, wherein the connecting pipe is arranged at an angle to the main pipe.

4. The refrigeration device according to claim 3, characterized in that: The connecting pipeline (712) is arranged at an angle, and an end of the connecting pipeline (712) connected to the main pipeline (711) is higher than an end of the connecting pipeline (712) connected to the cooling chamber (20).

5. The refrigeration device according to claim 4, characterized in that: The refrigerated return air duct also has a branch pipe (713) extending from the main pipe (711), and the connecting pipe (712) and the branch pipe (713) are respectively arranged on the left and right sides of the main pipe. When the fan operates normally, the air in the refrigerated room flows into the cooling room through the branch pipe and the main pipe; when the fan stops operating, the cold air in the cooling room flows into the lower part of the refrigerated room through the branch pipe and the main pipe.

6. The refrigeration device according to claim 5, characterized in that: The auxiliary return air inlet (7103) of the branch pipeline (713) and the return air inlet (7102) of the main pipeline (711) are arranged at intervals in the height direction.

7. The refrigeration device according to claim 1, characterized in that: The refrigeration device also comprises a mixing chamber (301) connecting the cooling chamber (20) and the refrigerating chamber (11), and an air duct (75) arranged at the rear of the storage space of the refrigerating chamber (11); one end of the air duct (75) is connected to the mixing chamber (301), and the other end arranged opposite to the mixing chamber is connected to the storage space of the refrigerating chamber (11).

8. The refrigeration device according to claim 7, characterized in that: The refrigerating chamber (11) is provided with a drawer (14) at its lower portion and a supporting structure (15) at its upper portion for supporting items, and the return air inlet (7102) of the refrigerating return air duct (71) is arranged close to the drawer (14) at the lower side.

9. The refrigeration device according to claim 7, characterized in that: The refrigeration device also has an air mixing structure (30) located at the back of the refrigerating chamber (11). When the fan (22) operates normally, the cooled air in the cooling chamber (20) and the air in the refrigerating chamber (11) flow into the mixing chamber (301) formed by the air mixing structure (30), mix, and then flow out into the refrigerating chamber (11).

10. The refrigeration device according to claim 9, characterized in that: The air mixing structure (30) is arranged at an upper position at the back of the refrigerating chamber (11), and is provided with an air outlet (312) located at the front side thereof for discharging air forward, an air inlet duct (5) for introducing the air in the refrigerating chamber (11) into the mixing chamber (301), and a connecting port located at the lower side thereof and connected to the air guide pipe (75).

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